Atomic structure and strain field of threading dislocations in CeO 2 thin films on yttria-stabilized ZrO2

Hajime Hojo, Eita Tochigi, Teruyasu Mizoguchi, Hiromichi Ohta, Naoya Shibata, Bin Feng, Yuichi Ikuhara

    Research output: Contribution to journalArticle

    21 Citations (Scopus)

    Abstract

    Threading dislocations in CeO2 thin films grown on yttria-stabilized ZrO2 substrates were investigated by transmission electron microscopy (TEM), high-resolution TEM, and scanning TEM. It is revealed that there are two kinds of threading dislocations with the Burgers vector of b=1/2 〈 110 〉: one is pure edge-type and the other is mixed-type. Comparing the strain field of the mixed-type dislocations with that of the Peierls-Nabarro and the Foreman dislocation models, we find that the Foreman model better describes it in CeO2.

    Original languageEnglish
    Article number153104
    JournalApplied Physics Letters
    Volume98
    Issue number15
    DOIs
    Publication statusPublished - 2011 Apr 11

    ASJC Scopus subject areas

    • Physics and Astronomy (miscellaneous)

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